Home / 8,721.27-13,074.62-3,530.79

Finding the Fourth Proportional to 8,721.27, 13,074.62 and 3,530.79

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Solution

The fourth proportional to 8,721.27, 13,074.62 and 3,530.79 is: 5,293.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.27 : 13,074.62 = 3,530.79 : x
  2. Step 2: Convert to fraction form
    8,721.27/13,074.62 = 3,530.79/x
  3. Step 3: Cross multiply
    8,721.27x = 13,074.62 × 3,530.79
  4. Step 4: Simplify right side
    8,721.27x = 46,163,719.90
  5. Step 5: Solve for x
    x = 46,163,719.90/8,721.27
  6. Step 6: Final answer
    x = 5,293.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.